If you disable 'Check recovery points integrity' for replicated Agents in Nightly Jobs on a Target Core, 'Check recovery points integrity' is re-enabled as soon as new replication jobs for Agents are ran.
There is no error reported.
This defect is resolved in Rapid Recovery 6.1.3.
There is a patch for Rapid Recovery 6.1.1 & 6.1.2. Please open a service request with support and request the patch.